Oil Cooler Bypass: This part might just save a race or driver school weekend. If your oil cooler should be damaged or suffer a rupture, this little part can be substituted for the oil cooler and keep you in the hunt. Also, the bypass can make engine service with the oil cooler removed a lot safer and easier.

The bypass comes in two configurations. stock e36 M3 or MZ3, and with -10 AN fittings.. Please specify which is required.

Oil Cooler Bypass: This part might just save a race or driver school weekend. If your oil cooler should be damaged or suffer a rupture, this little part can be substituted for the oil cooler and keep you in the hunt. Also, the bypass can make engine service with the oil cooler removed a lot safer and easier.

The bypass comes in two configurations. stock e36 M3 or MZ3, and with -10 AN fittings.. Please specify which is required.

We have noted more M54 engine failures due to overheating than on any of BMW's previous engines. We believe this is due to a combination of factors including the electronic thermostat and high operating temperatures. Our M54 Competition Thermostat Plate Kit is designed to return the selection of normal engine operating temperature to the owner/builder and improve engine longevity by replacing the failure prone electronically-controlled thermostat with a mechanical unit. [See Full Description Below]

We have noted more M54 engine failures due to overheating than on any of BMW's previous engines. We believe this is due to a combination of factors including the electronic thermostat and high operating temperatures. Our M54 Competition Thermostat Plate Kit is designed to return the selection of normal engine operating temperature to the owner/builder and improve engine longevity by replacing the failure prone electronically-controlled thermostat with a mechanical unit. [See Full Description Below]

Now you can turn your Zionsville Autosport e36 Alloy Radiator into a Competition Kit! This upgrade requires no additional welding, so it can be installed in the field with rivits across the upper and lower core header panels. This kit can also be used on O.E. radiators or other aftermarket radiators with O.E. core dimensions. [See Full Description Below]

Now you can turn your Zionsville Autosport e36 Alloy Radiator into a Competition Kit! This upgrade requires no additional welding, so it can be installed in the field with rivits across the upper and lower core header panels. This kit can also be used on O.E. radiators or other aftermarket radiators with O.E. core dimensions. [See Full Description Below]

This shroud and expansion tank assembly is an excellent way to improve cooling while preserving the value of your current radiator investment. The shroud is adapted to fit a Spal 14″ MP fan assembly with stock mounting feet, which are sold separately. Offsetting the fan allows this kit to be used with various Super Charger kits.

This shroud and expansion tank assembly is an excellent way to improve cooling while preserving the value of your current radiator investment. The shroud is adapted to fit a Spal 14″ MP fan assembly with stock mounting feet, which are sold separately. Offsetting the fan allows this kit to be used with various Super Charger kits.

Our Type 3 Radiator is a direct replacement for the stock Z3 radiator. It fearures increaded fluid capacity, better dissipating materials over stock and a lifetime warranty. This version also has two rows removed and mounting provisions to accommodate a factory oil cooler (not included). [See Full Description Below]

Our Type 3 Radiator is a direct replacement for the stock Z3 radiator. It fearures increaded fluid capacity, better dissipating materials over stock and a lifetime warranty. This version also has two rows removed and mounting provisions to accommodate a factory oil cooler (not included). [See Full Description Below]

Our type 21 radiator is now available. It's the first radiator designed for owners of 4 cylinders who would like to upgrade the quality and appearance of their cooling systems. [See Full Description Below]

Our type 21 radiator is now available. It's the first radiator designed for owners of 4 cylinders who would like to upgrade the quality and appearance of their cooling systems. [See Full Description Below]

The Competition Cooling Kit with Offset Fan is designed for race applications where temperature management is even more critical. The kit includes, in addition to the benefits of an all alloy radiator, an alloy fan shroud, alloy overflow tank, aluminum cap and a 14 inch Spal electric fan. The offset fan feature was designed for twin cam six engines that have been fitted with a Dinan Supercharger. This design compenstates for the supercharger's pulley. [See Ful Description Below]

The Competition Cooling Kit with Offset Fan is designed for race applications where temperature management is even more critical. The kit includes, in addition to the benefits of an all alloy radiator, an alloy fan shroud, alloy overflow tank, aluminum cap and a 14 inch Spal electric fan. The offset fan feature was designed for twin cam six engines that have been fitted with a Dinan Supercharger. This design compenstates for the supercharger's pulley. [See Ful Description Below]

The Z Series S54 Super Comp Cooling Kit is designed for for high stress applications where fluid temperature is critical. This kit includes a specially designed alloy radiator with a provision for the factory oil cooler, integrated aluminum shroud which incorporates both the radiator and factory oil cooler (sold separately), cooling flaps which aid air flow at higher speeds, and a 16 inch spal electric fan. Due to the design features of this kit, the factory auxiliary fan is unnecessary and may be removed. [See Full Description Below]

The Z Series S54 Super Comp Cooling Kit is designed for for high stress applications where fluid temperature is critical. This kit includes a specially designed alloy radiator with a provision for the factory oil cooler, integrated aluminum shroud which incorporates both the radiator and factory oil cooler (sold separately), cooling flaps which aid air flow at higher speeds, and a 16 inch spal electric fan. Due to the design features of this kit, the factory auxiliary fan is unnecessary and may be removed. [See Full Description Below]

Our type 20 radiator is now available. It's the first kit for owners of 4 cylinders who would like to upgrade the quality and appearance of their cooling systems. However, the Type 20 is not limited to 4 cylinder applications. The core size is spec for European E36 6 cylinders. This configuration allows for additional clearance, which is required by many aftermarket forced induction kits, while retaining the 16" fan. [See Full Description Below]

Our type 20 radiator is now available. It's the first kit for owners of 4 cylinders who would like to upgrade the quality and appearance of their cooling systems. However, the Type 20 is not limited to 4 cylinder applications. The core size is spec for European E36 6 cylinders. This configuration allows for additional clearance, which is required by many aftermarket forced induction kits, while retaining the 16" fan. [See Full Description Below]

The Aluminum Radiator with Integrated Oil Cooler Kit is designed for for high stress applications where fluid temperature is critical. This kit includes a specially designed alloy radiator, oil cooler, oil lines, switches, fan shroud, all the necessary hardware and seals, and much more. Thirty-eight pieces in all! [See Full Description Below]

The Aluminum Radiator with Integrated Oil Cooler Kit is designed for for high stress applications where fluid temperature is critical. This kit includes a specially designed alloy radiator, oil cooler, oil lines, switches, fan shroud, all the necessary hardware and seals, and much more. Thirty-eight pieces in all! [See Full Description Below]